Fuel vaporizer



July 10, 1951 J. GRAZIANO 2,560,220

FUEL VAPORIZER Filed Aug. 28, 1946 2 Sheets-Sheet l n 'l l-lllm lll,

July 10, 1951 J. GRAZIANO 2,560,220

FUEL VAPORIZER Filed Aug. 28, 1946 2 Sheets-Sheet 2 ,95 INVENTOR.

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ATTE RNEYS Patented July 10, 1951 UNITED STATES PATENT OFFICE 1 Claim.

The present invention relates to an improved fuel vaporizer particularlyadapted for use in internal combustion engines using gasoline as a fueland consists generally in the unique filter inserted between thecarburetor and the intake manifold of the engine and other novelcombinations and arrangements of parts as will be hereinafter fullydescribed.

In the accompanying drawings I have illustrated one complete example ofthe physical embodiment of my invention according to the best mode Ihave thus far devised, but it will be understood that various changesand alterations may be made in the exemplified structure within thescope of the appended claim.

In the drawings:

Figure 1 is a front elevational view of the housing for the filter of myinvention.

Fig. 2 is a vertical sectional View at line 2 2 of Fig. 1.

Fig. 3 is a partial longitudinal sectional view at line 3 3 of Fig. 2.

Fig. 4 is a horizontal sectional view at line 4-4 of Fig. 3.

Fig. 5 is a horizontal sectional View at line 5 5 of Fig. 3.

Fig. 6 is a horizontal sectional view at line 6-6 of Fig. 3.

Fig. 7 is a top plan view of the filter.

Fig. 8 is a perspective view thereof.

Fig. 9 is a perspective view of a diffusing device.

Fig. l is a sectional view of a modified ported stud; and

Fig. l1 is a diagrammatic View showing the electrical circuit forheating the lter.

Referring now to the drawings I have illustrated the present embodimentof my invention as mounted upon a conventional engine 2 having anexhaust manifold 4 and exhaust pipe 6. A butterfly valve 8 on shaft I0is actuated by a heat responsive coil I2 secured in the stud I4 throughslot I5, and the nut portion Ia permits the stud to be tightened intothe intake manifold I6.

The intake manifold I6 has the usual pipes I1 secured to the engine bybolts I8 and the manifold is fashioned with a fiat wall 20 over theexhaust manifold, the valve 8 controlling the flow of hot exhaust gasesin contact with the wall 20.

Passages 22 around the intake manifold I6 permit circulation of hotgases under control of the valve 8 and the passages are formed by thecasing 24. A neck 26 for the interior of the casing has a venturi 21 andthe upper part of this casing 24 is fashioned into an annular seat 28.

A cap 30 is secured to the casing 24 by bolts 25 and the interior of thecap is fashioned with a dome recess 32 and an upper port 34 to aconventional carburetor 36 having a recessed ange 31.

On the seat 28 I utilize a filter 38 comprising a hollow cone of pressedpowdered metal and porous to permit the flow therethrough of thegasoline and air mixture from the carburetor while filtering impuritiesand foreign objects. The flange 49 is pressed into the cap 30 for tightfit therein and resting upon the seat 28.

The cap and casing form an atomizing chamber in which the filter islocated and to create turbulence within this chamber I employ a stem 42positioned in and above the wall 28 and having a disk 44 preventing thestem from slipping through the wall, and spaced cones 46 and 48 divergethe gas and air fiow while the venturi 21 constricts the flow.

In Fig. 1l I have shown how the cone filter of my invention `may be usedin the intake pipes I1, the wires 52 leading to the top 54 of the coneand the connector 56 thereon from the switch 50 and battery 60 andground 62 thereby permitting the heating of the porous metal filter byelectricity.

In Fig. lO I have shown the stud I4 with a passage 64 communicating withthe atomizing chamber, and the outlet 66 being controlled by a ballvalve 88 inside the end of the pipe or tube 10.

Having thus fully described my invention what I claim as new and desireto secure by Letters Patent is:

A fuel vaporizer comprising, a casing forming an atomizing chamber, anintake chamber below and connecting with the atomizing chamber, intakeopenings for said intake chamber, a porous metal filter having a hollowconical formation, within said atomizing chamber, a diffusing conewithin and aligned with the base of said hollow filter and extendinginto said atomizing chamber, a second diffusing cone below said firstdiffusing cone and connected thereto and lying within the intake chamberopposite to one of the intake openings for said intake chamber, and aheat transfer means for heating the porous metal lter.

JOSEPH GRAZIANO.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,106,452 Ittner Aug. 11, 19141,171,145 Sachs Feb. 8, 1916 1,320.528 Borkes Nov. 4, 1919 1,367,789Torres Feb. 8. 1921 1,416,938 Bowman May 23, 1922 1,484,617 Aske Feb.26, 1924 1,663,507 Parsons Mar. 20, 1928 1,897,540 Timian Feb. 14, 19331,913,684 Purdy June 13, 1933 2,297,817 Truxell et al. Oct. 6, 19422,373,867 Wepplo Apr. 17, 1945 2,411,204 Graziano Nov. 19, 1946 OTHERREFERENCES Chrysler Corporation catalogue entitled Oilite Bearings andParts, dated August 15, 1944.

